Black tights, nude tights or no tights?

I have a little black dress to wear on a dinner cruise with a red coat. It is going to be cold so I am wearing tights. I was just wondering what guys preferred? Is there one color thats sexier over the other? Or should I not wear any at all?

or I'd wear red and black tights to match the coat. I don't know I personally think that wearing a black dress with black tights isn't cute.. unless the tights are sheer which completely defeats the purpose of wearing tights in the first place